Dysphagia
. The purpose of this investigation was to determine what implications consistent presentation of food, delivered by an assistive feeding device at a position regarded as optimal, would have for the maintenance of food intake, duration of meals, and efficiency of eating. The trial employed an AB within-subjects design and extended over a 9-month period. Twenty children, aged 7 to 17 years, with severe...
. Food movements during complete feeding sequences on soft and hard foods (8 g of chicken spread, banana, and hard cookie) were investigated in 10 normal subjects; 6 of these subjects also ate 8 g peanuts. Foods were coated with barium sulfate. Lateral projection videofluorographic tapes were analyzed, and jaw and hyoid movements were established after digitization of records for 6 subjects. Sequences...
. Coughing is a physiologic response to aspiration in normal healthy individuals. However, there are published records that report no cough in response to aspiration (i.e., silent aspiration) in dysphagic patients. In this retrospective study, for more than 2 years in two acute care hospitals we examined frequency of the cough response in patients identified as aspirators by using videofluoroscopy...
Abstract. Coughing is a physiologic response to aspiration in normal healthy individuals. However, there are published records that report no cough in response to aspiration (i.e., silent aspiration) in dysphagic patients. In this retrospective study, for more than 2 years in two acute care hospitals we examined frequency of the cough response in patients identified as aspirators by using videofluoroscopy...
Abstract. Food movements during complete feeding sequences on soft and hard foods (8 g of chicken spread, banana, and hard cookie) were investigated in 10 normal subjects; 6 of these subjects also ate 8 g peanuts. Foods were coated with barium sulfate. Lateral projection videofluorographic tapes were analyzed, and jaw and hyoid movements were established after digitization of records for 6 subjects...
. We studied 10 normal subjects to determine the effect of doses of intravenous glucagon used to treat food impaction on esophageal motor function. With a multilumen assembly perfused by a low compliance pneumohydraulic infusion pump, esophageal manometry was performed during baseline and after randomized administration of 0.25, 0.5, and 1 mg intravenous glucagon. Mean proximal and distal amplitudes...
. The viscoelastic properties of the human and canine pharyngeal tissue in tension were evaluated, based on both an experimental protocol—consisting of cyclic load, tensile stress relaxation, and incremental step load tests—and the quasi-linear viscoelastic theory. The reduced stress relaxation function and the elastic response of the pharyngeal tissues were derived from the experimental results...
Abstract. The viscoelastic properties of the human and canine pharyngeal tissue in tension were evaluated, based on both an experimental protocolconsisting of cyclic load, tensile stress relaxation, and incremental step load testsand the quasi-linear viscoelastic theory. The reduced stress relaxation function and the elastic response of the pharyngeal tissues were derived from the experimental results...
. The present study was designed to examine the sensitivity and specificity of a 28-item screening test in identifying patients who aspirate, have an oral stage disorder, a pharyngeal delay, or a pharyngeal stage disorder. The screening test includes 28 items divided into 5 categories: (1) 4 medical history variables; (2) 6 behavioral variables; (3) 2 gross motor variables; (4) 9 observations from...
Abstract. The purpose of this investigation was to determine what implications consistent presentation of food, delivered by an assistive feeding device at a position regarded as optimal, would have for the maintenance of food intake, duration of meals, and efficiency of eating. The trial employed an AB within-subjects design and extended over a 9-month period. Twenty children, aged 7 to 17 years,...
Abstract. The mechanism and neural substrates that mediate lingual coordination during swallowing have not been well characterized. Although lingual discoordination during swallowing has been difficult to quantify, it has been defined as the random disorganization of anteriorposterior tongue movements evident in bolus propulsion. In a sample of consecutive acute stroke patients (n= 59), videofluoroscopic...
. Simultaneous videoradiography and solid-state manometry (videomanometry) was applied in eight healthy volunteers (four women, four men; age range 25–64 years, mean age 41 years) without swallowing problems. Three different swallowing techniques were tested; supraglottic swallow, effortful swallow, and chin tuck. Seven videoradiographic variables and six manometric variables were analyzed. The supraglottic...
. The purpose of the present study was to investigate the incidence of aspiration in previously aspirating patients with tracheotomy after use of a one-way tracheotomy tube speaking valve. Twenty consecutive inpatients from the acute care setting of a large urban tertiary care teaching hospital were included. All subjects had objective documentation of aspiration by a fiberoptic endoscopic evaluation...
Abstract. This study examines the functional and physiologic outcomes of treatment in a group of 10 patients with chronic dysphagia subsequent to a single brainstem injury. All patients participated in a structured swallowing treatment program at a metropolitan teaching hospital. This program differs from more traditional swallowing treatment by the inclusion of surface electromyography biofeedback...
Abstract. Simultaneous videoradiography and solid-state manometry (videomanometry) was applied in eight healthy volunteers (four women, four men; age range 2564 years, mean age 41 years) without swallowing problems. Three different swallowing techniques were tested; supraglottic swallow, effortful swallow, and chin tuck. Seven videoradiographic variables and six manometric variables were analyzed...
. The mechanism and neural substrates that mediate lingual coordination during swallowing have not been well characterized. Although lingual discoordination during swallowing has been difficult to quantify, it has been defined as the random disorganization of anterior–posterior tongue movements evident in bolus propulsion. In a sample of consecutive acute stroke patients (n= 59), videofluoroscopic...
Abstract. Burst patterns in the digastric, mylohyoid, and masseter muscles and the resultant jaw movement orbits during chewing and swallowing were investigated in the freely behaving rabbit. Activities in the posterior mylohyoid fibers consisted of two continuous bursts. Peaks in the first burst of the posterior fibers occurred in the middle part of opening and preceded the digastric burst. Peaks...